<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script type="text/javascript">
    // var result = 1;
    // result = 2 * "8";
    //
    // result = 2 * undefined;
    //
    // result = 2 * null;
    //
    // result = 4 / 2;
    //
    // result = 3 / 2;
    // console.log(result);
    //
    // result = 9 % 5;
    // console.log(result);
    var a = 1;
    a = a + 1;
    console.log("a = " + a);

    a++;
    console.log(a);

    var result = 1;
    result = false || false;
    result = true || false;
    result = false || true;
    result = true || true;
    result = 5 && 6;
    console.log(result);

    result = 0 && 2;
    console.log(result);


    result = 2 && 0;
    console.log(result);


</script>
</body>
</html>